release.yaml

name: Build precompiled NIFs

env:
  NIF_DIRECTORY: "native/ex_jack"

on:
  push:
    branches:
      # Always run on main branch.
      - main
    tags:
      # Tags will always run.
      - '*'
  pull_request:
    paths:
      # Run if "native" path changed.
      - 'native/**'

defaults:
  run:
    shell: bash
    # Sets the working dir for "run" scripts.
    # Note that this won't change the directory for actions (tasks with "uses").
    working-directory: "./native/ex_jack"

jobs:
  build_release:
    name: NIF ${{ matrix.nif }} - ${{ matrix.job.target }} (${{ matrix.job.os }})
    runs-on: ${{ matrix.job.os }}
    strategy:
      fail-fast: false
      matrix:
        nif:
          - "2.14"
          - "2.15"
          - "2.16"
        job:
          - { target: arm-unknown-linux-gnueabihf , os: ubuntu-20.04 , use-cross: true }
          - { target: aarch64-unknown-linux-gnu   , os: ubuntu-20.04 , use-cross: true }
          - { target: aarch64-apple-darwin        , os: macos-11      }
          - { target: x86_64-apple-darwin         , os: macos-11      }
          - { target: x86_64-unknown-linux-gnu    , os: ubuntu-20.04  }
          - { target: x86_64-unknown-linux-musl   , os: ubuntu-20.04 , use-cross: true }
          - { target: x86_64-pc-windows-gnu       , os: windows-2019  }
          - { target: x86_64-pc-windows-msvc      , os: windows-2019  }

    env:
      RUSTLER_NIF_VERSION: ${{ matrix.nif }}
    steps:
    - name: Checkout source code
      uses: actions/checkout@v2

    - name: Install prerequisites
      run: |
        case ${{ matrix.job.target }} in
          arm-unknown-linux-*) sudo apt-get -y update ; sudo apt-get -y install gcc-arm-linux-gnueabihf libjack-jackd2-dev;;
          aarch64-unknown-linux-gnu) sudo apt-get -y update ; sudo apt-get -y install gcc-aarch64-linux-gnu libjack-jackd2-dev;;
        esac

    - name: Extract crate information
      run: |
        echo "PROJECT_NAME=$(sed -n 's/^name = "\(.*\)"/\1/p' Cargo.toml | head -n1)" >> $GITHUB_ENV
        # Get the project version from mix.exs
        echo "PROJECT_VERSION=$(sed -n 's/^  @version "\(.*\)"/\1/p' ../../mix.exs | head -n1)" >> $GITHUB_ENV

    - name: Install Rust toolchain
      uses: actions-rs/toolchain@v1
      with:
        toolchain: stable
        target: ${{ matrix.job.target }}
        override: true
        profile: minimal

    - name: Show version information (Rust, cargo, GCC)
      run: |
        gcc --version || true
        rustup -V
        rustup toolchain list
        rustup default
        cargo -V
        rustc -V
        rustc --print=cfg

    - name: Download cross from GitHub releases
      uses: giantswarm/install-binary-action@v1.0.0
      if: ${{ matrix.job.use-cross }}
      with:
        binary: "cross"
        version: "v0.2.1"
        download_url: "https://github.com/rust-embedded/cross/releases/download/${version}/cross-${version}-x86_64-unknown-linux-gnu.tar.gz"
        tarball_binary_path: "${binary}"
        smoke_test: "${binary} --version"

    - name: Build
      run: |
        if [ "${{ matrix.job.use-cross }}" == "true" ]; then
          cross build --release --target=${{ matrix.job.target }}
        else
          cargo build --release --target=${{ matrix.job.target }}
        fi

    - name: Rename lib to the final name
      id: rename
      run: |
        LIB_PREFIX="lib"
        case ${{ matrix.job.target }} in
          *-pc-windows-*) LIB_PREFIX="" ;;
        esac;

        # Figure out suffix of lib
        # See: https://doc.rust-lang.org/reference/linkage.html
        LIB_SUFFIX=".so"
        case ${{ matrix.job.target }} in
          *-apple-darwin) LIB_SUFFIX=".dylib" ;;
          *-pc-windows-*) LIB_SUFFIX=".dll" ;;
        esac;

        CICD_INTERMEDIATES_DIR=$(mktemp -d) 

        # Setup paths
        LIB_DIR="${CICD_INTERMEDIATES_DIR}/released-lib"
        mkdir -p "${LIB_DIR}"
        LIB_NAME="${LIB_PREFIX}${{ env.PROJECT_NAME }}${LIB_SUFFIX}"
        LIB_PATH="${LIB_DIR}/${LIB_NAME}"

        # Copy the release build lib to the result location
        cp "target/${{ matrix.job.target }}/release/${LIB_NAME}" "${LIB_DIR}"

        # Final paths
        # In the end we use ".so" for MacOS in the final build
        # See: https://www.erlang.org/doc/man/erlang.html#load_nif-2
        LIB_FINAL_SUFFIX="${LIB_SUFFIX}"
        case ${{ matrix.job.target }} in
          *-apple-darwin) LIB_FINAL_SUFFIX=".so" ;;
        esac;

        LIB_FINAL_NAME="${LIB_PREFIX}${PROJECT_NAME}-v${PROJECT_VERSION}-nif-${RUSTLER_NIF_VERSION}-${{ matrix.job.target }}${LIB_FINAL_SUFFIX}"

        # Copy lib to final name on this directory
        cp "${LIB_PATH}" "${LIB_FINAL_NAME}"

        tar -cvzf "${LIB_FINAL_NAME}.tar.gz" "${LIB_FINAL_NAME}"

        # Passes the path relative to the root of the project.
        LIB_FINAL_PATH="${NIF_DIRECTORY}/${LIB_FINAL_NAME}.tar.gz"

        # Let subsequent steps know where to find the lib
        echo ::set-output name=LIB_FINAL_PATH::${LIB_FINAL_PATH}
        echo ::set-output name=LIB_FINAL_NAME::${LIB_FINAL_NAME}.tar.gz

    - name: "Artifact upload"
      uses: actions/upload-artifact@v2
      with:
        name: ${{ steps.rename.outputs.LIB_FINAL_NAME }}
        path: ${{ steps.rename.outputs.LIB_FINAL_PATH }}

    - name: Publish archives and packages
      uses: softprops/action-gh-release@v1
      with:
        files: |
          ${{ steps.rename.outputs.LIB_FINAL_PATH }}
      if: startsWith(github.ref, 'refs/tags/')

    - name: Publish to Hex.pm
      uses: erlangpack/github-action@v1
      env:
        HEX_API_KEY: ${{ secrets.HEX_API_KEY }}
      if: startsWith(github.ref, 'refs/tags/')